Removing The Power Distribution Board.........................................................................................................79
Installing The Power Distribution Board..........................................................................................................80
System Board..........................................................................................................................................................81
Removing The System Board...........................................................................................................................81
Installing The System Board............................................................................................................................82
4 Troubleshooting Your System.................................................................................................85
Safety First—For You And Your System.................................................................................................................85
Troubleshooting System Startup Failure................................................................................................................85
Troubleshooting External Connections...................................................................................................................85
Troubleshooting The Video Subsystem..................................................................................................................85
Troubleshooting A USB Device..............................................................................................................................85
Troubleshooting A Serial I/O Device......................................................................................................................86
Troubleshooting A NIC............................................................................................................................................86
Troubleshooting A Wet System..............................................................................................................................86
Troubleshooting A Damaged System.....................................................................................................................87
Troubleshooting The System Battery.....................................................................................................................88
Troubleshooting Redundant Power Supplies.........................................................................................................88
Troubleshooting A Non-Redundant Power Supply.................................................................................................88
Troubleshooting Cooling Problems.........................................................................................................................89
Troubleshooting Cooling Fans................................................................................................................................89
Troubleshooting System Memory...........................................................................................................................89
Troubleshooting An Internal USB Key....................................................................................................................90
Troubleshooting An SD Card..................................................................................................................................90
Troubleshooting An Optical Drive...........................................................................................................................91
Troubleshooting A Tape Backup Unit.....................................................................................................................91
Troubleshooting A Hard Drive................................................................................................................................92
Troubleshooting A Storage Controller....................................................................................................................92
Troubleshooting Expansion Cards..........................................................................................................................93
Troubleshooting Processors...................................................................................................................................94
5 Using System Diagnostics.......................................................................................................95
Dell Online Diagnostics...........................................................................................................................................95
Dell Embedded System Diagnostics.......................................................................................................................95
When To Use The Embedded System Diagnostics..........................................................................................95
Running The Embedded System Diagnostics...................................................................................................95
System Diagnostic Controls.............................................................................................................................96
6 Jumpers And Connectors........................................................................................................97
System Board Jumper Settings..............................................................................................................................97
System Board Connectors......................................................................................................................................98
Disabling A Forgotten Password............................................................................................................................99
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